K2625 Digital Tachometer SELF-ASSEMBLY electronic kit is for cars or motorcycles with 2 and 4 stroke petrol engines with any number of cylinders and contact breaker or electronic ignition systems. May be used as a general purpose revolution counter...

MK189 12V Car Battery Monitor Kit is small, simple to build and easy to install. It provides continuous feedback regarding the car battery status using a multicolour LED indicator so you can instantly see if the battery is OK, charging, overcharging or has low voltage...

VM189 12V Car Battery Monitor Module is small, simple to build and easy to install. It provides continuous feedback regarding the car battery status using a multicolour LED indicator so you can instantly see if the battery is OK, charging, overcharging or has low voltage...